The fight of the century could said be the fight among all the Kages, so you can guess how excellent the fighting is. Back to the farm, the joiner are the leader of Hashirama family and Uchiha family. At that time, Madara own the most perfect and best Kekkei genkai — Syaringan which could said be accounting for absolute superiority; however, since there have Syaringan, why should create another Justu, the Hashirama family’s mudun secret jutsu. Finally, Hashirama Senju defeated Uchiha Madara and then decided the king position of Hashirama family, and the recessionary of Uchiha family.

Kakashi V.S Guy

Kakashi and Guy is a joy enemy from childhood, however, their characteristic is entirely different. One is not officious, but the others always challenge Kakashi with clamor. Till now, the record is Guy win one more than Kakashi. Throughout the strength, they are the same.

Naruto V.S Sasuke

Naruto is the son of 4thHokage, Sasuke is the descendant of Uchiha Madara. The 4th Hokage have fight with Uchiha Madara at the End valley, maybe this is the arrangement of fate, the finally fight between Naruto and Sasuke was also at this place. Since they join in the 7 class, they have never stop struggle between them, they practice together, studied together, their friendship is the mainline of this anime.

Pein V.S Uchiha Itachi

They are all the powerful ninja and they are also the topics of Naturo enthusiasts. Both them have a uncommon birth, Pein is the apprentice of Jiraiya who also taught the 4th Hokage, and in addition Pein own the Rinnegan by the Sage of the Six Paths; and Itachi comes from Uchiha family, he become the leader of ANBU when he was young, and own the Mangekyō Sharingan. Although they have not fight, but we believe, their fight must be very excellent.

Sakura V.S Ino

They are female Frenemies in Naturo, I think you must hear of them. At the beginning, they are inseparable good friends; but then they become opponents and rival for strive the girlfriend position of Sasuke. Finally, at the examination of Chuunin, they bury their differences and reconciling.